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LHAP Year 2-3 > Urban Forestry305#2deck > Flashcards

Urban Forestry305#2deck Flashcards

1
Q

Hearing protection is needed for any sound intensity greater than

A

85dB

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2
Q

Leg protection should be washed and cleaned on regular basis following manufacturers recommendations to

A

Ensure they remain entirely cut proof

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3
Q

The ideal length for leg protection is

A

About two inches below the top of the boot

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4
Q

The area of the body that receives the most chain saw injuries in the ground work is the

A

Left Leg

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5
Q

The most common head injury to tree workers from being struck by a falling object is

A

Concussion

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6
Q

Hearing injury from loud noise is completely reversible in time

A

No

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7
Q

Leg protection is designed to stop a chain running full throttle

A

No

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8
Q

The most common injury from chain saw is a

A

Laceration

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9
Q

Which component of PPE is not mandated by any regulation or standard, but is still an excellent item to have on hand is

A

Cell phone

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10
Q

The most common fatal accident scenario from felling a tree is

A

Being struck by a branch or the falling tree

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11
Q

Laceration is the medical term for

A

A torn, ragged cut

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12
Q

Chain saw cuts may occur where?

A

While on the ground, in the aerial lift and while aloft in the tree

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13
Q

Should you walk around site with the chainsaw running

A

No

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14
Q

The portion of the eye most often lacerated by the chain saw is

A

The upper eye lid

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15
Q

The medical term for a mass of hardened, inflamed tissue, usually as a result of infection such as a splint of material in the body is

A

Granulomas

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16
Q

NIHL stands for

A

Noise Induced Hearing Loss

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17
Q

Appropriate footwear operating a chain saw is

A

Heavy leather work boots with non-slip tread

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18
Q

The cavity in the ear where sound vibrations are converted to a nerve signal transmitted to the brain is called

A

Cochlea

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19
Q

The type of gloves that should not be worn, particularly if the wear will be chipping brush are

A

Gauntlet gloves

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20
Q

One of the major factors why professional saw users such as loggers and arborists, have fewer serious injuries from chain saws compared to occasional users such as homeowners is that

A

Professionals are typically wearing PPE

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21
Q

What is the most basic element in developing a tree felling plan

A

Gathering information

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22
Q

The first step in a tree felling plan is to assess

A

Hazards

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23
Q

In relation to tree felling, obstacle’s are

A

Anything that can be hurt or damaged

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24
Q

Determining the height of the tree to be felled can help you

A

Decide if there is enough room to fell it, consider alternative methods of removal, and establish a danger zone around the tree

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25
Q

The danger zone around a tree base should have a radius of

A

Atleast 1.5 times the height of the tree

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26
Q

The “bad side” of a tree is the where there is a lean

A

Yes

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27
Q

If a solid tree is being felled towards the north, but has a slight lean toward the east, the “good side” of the tree will be the

A

west

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28
Q

What are the essential steps in tree felling

A

Determine the lean of the tree, checking for hazards, and establishing an escape route.

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29
Q

A stepped back cut can be warranted

A

Anytime an open face notch is used

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30
Q

The total percentage of accidents in tree felling occurs within a 15’ radius of the tree base is

A

80-90%

31
Q

The best escape route during tree felling is

A

The opposite direction of the fall at 45-degree angle

32
Q

Kickback occurs when an object comes in contact with the

A

front, upper quadrant of the tip of the chain saw bar

33
Q

A bore cut is initiated with which part of the chainsaw

A

The bottom corner of the tip of the bar

34
Q

Sometimes a forward-leaning tree can split vertically up from the back cut. This creates a dangerous situation called a

A

Barbers Chair

35
Q

To which degree should the open-face notch be cut for the most control

A

70 degrees or greater

36
Q

The hinge length should be atleast

A

80% the diameter of the tree

37
Q

The hinge thickness should be no more than

A

10% the diameter of the tree

38
Q

Which is the best option when felling a tree with a forward lean

A

A bore cut

39
Q

When using a bore cut for making the back cut in a felling operation the last part to be cut is the

A

Strap of wood in the back

40
Q

The 4 chainsaw safety features

A

Chain catcher Hand/wrist guard Throttle interlock Inertia Hand brake

41
Q

How do you activate the inertia hand brake

A

With your two front fingers or your wrist well keeping your thumb wrapped on the front grip. Never take your hand off the front grip. Always have two hands on the chainsaw

42
Q

What do felling dogs provide

A

Leverage and control when making a cut

43
Q

How many chainsaw related injuries are there a year for all users

A

40,000-90,000

44
Q

Deaths occur in how many accidents a year

A

40-60

45
Q

When does kickback occur

A

When the top corner of the bar is used

46
Q

How are bore cuts started

A

With the bottom corner of the bar

47
Q

What are the two types of wedges

A

Felling Bucking

48
Q

On a felling wedge what are the dogs for and what way do they need to be facing

A

They are grips and need to face downwards

49
Q

Do bucking wedges have dogs

A

No

50
Q

What are the 6 steps in a felling plan

A

Check hazards Determine height and lean of tree Equipment check Establish escape route The notch/hinge The back cut

51
Q

3 root defects are

A

Girdling No roots on the outside of the root ball One sided root growth on the ball

52
Q

Has root pruning been shown to improve transplanting success

A

Yes

53
Q

When installing a tree how much wider should the hole be than the root ball

A

2x width

54
Q

Is a glazed hole okay for planting

A

No

55
Q

What section of OHS covers Tree Care Operations

A

Part 39

56
Q

Section 796 covers what in tree care operation

A

The Knot Exemption

57
Q

What section of OHS are tree care workers and operations exempt from

A

Section 150.3

58
Q

Section 793 states that an employer must develop what

A

Safe work practices and procedures

59
Q

Fall protection and work positioning are covered by what 2 sections

A

794 and 795

60
Q

Safe work practices and procedures are covered by what section

A

793

61
Q

The knot exemption is covered by section?

A

796

62
Q

Does section 150.3 apply to tree care workers and operations

A

No

63
Q

What is the 5-15-90 Rule

A

Within 5’ of a tree in the first 15 seconds a tree falling is when 90% of injuries or fatalities occur.

64
Q

Should bystanders or tree workers be within the fall zone of tree when it is being brought down

A

No

65
Q

Saw reactionary forces do what when cutting from the bottom

A

Push

66
Q

Saw reactionary forces do what when cutting on the top

A

Pull

67
Q

Site assessment includes

A

Drainage test Soil compaction test Soil Texture test

68
Q

Selecting a nursery trees includes assessing what

A

Above ground quality Below ground quality

69
Q

The right tree for the right place includes

A

ExposureSoil Space constraints Function of planting Hardiness

70
Q

According to Alberta OHS PART 34, section 3, workers felling trees must use wedges to help topple trees in the intended direction

A

Yes, they must use wedges

71
Q

According to studies done in the USA between 1991 and 2016, one tree worker was killed on the job every

A

2.5days

72
Q

When writing pruning specifications for your crew it is most important to give instructions that cannot be misunderstood

A

Yes.

73
Q

A young urban forest tree can be pruned how many times in the first 15 years of it life to develop a strong, sustainable structure

A

As many as five times.

LHAP Year 2-3 (12 decks)

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